Results 51 to 60 of about 1,743 (174)

Plate Interface Shear Zone in the Sanbagawa Metamorphic Belt, Constrained by RSCM Thermometry, U–Pb Zircon Dating and Phase Equilibria Modelling in the Sarutagawa Region, Central Shikoku, Japan

Journal of Metamorphic Geology, Volume 43, Issue 3, Page 257-285, April 2025.
ABSTRACT Exhumed high‐P/low‐T complexes are of paramount importance to directly access rocks that experienced subduction zone processes. However, the original tectono‐metamorphic fabrics are often partially obliterated by exhumation and later deformation, hindering our understanding of the processes occurring at depth.
Samuele Papeschi, Kenta Kawaguchi, Keishi Okazaki, Yasutaka Hayasaka, Takehiro Hirose   +4 more
wiley   +1 more source

Outline of the Variscan basement of Sardinia [PDF]

, 2009
In Sardinia a quasi-complete section of the southern branch of the Variscan orogenic belt crops out, characterized by non-metamorphosed to high-grade rocks, whose age ranges from Early Cambrian to Early Carboniferous, and that are involved in a complex polyphase deformation.
FUNEDDA, ANTONIO LUCA, Oggiano, Giacomo
openaire   +1 more source

Primeros datos del magmatismo pérmico medio-superior del SE de la Cordillera Ibérica: caracterización y comparación con magmatismos contemporáneos del Tethys occidental [PDF]

A multiple basic to intermediate sill is reported for the first time in the south-eastern Iberian Ranges. It is composed of several tabular to irregular levels intercalated within the fluvial sediments of the Alcotas Formation (Middle-Upper Permian). The
Alonso-Azcárate, J., Arche, A., Barrenechea, J.F., Benito, M.I., de la Horra, R., Galán-Abellán, B., Galé, C., Lago, M., Luque, F.J., López-Gómez, J., Timmerman, M.J., Ubide, T.   +11 more
core   +2 more sources

Thermochronology of the Western Alps (Pelvoux Massif) Reveals the Longterm Multiphase Tectonic History of the European Paleomargin

Tectonics, Volume 44, Issue 2, February 2025.
Abstract The Variscan and Alpine long‐term thermal evolution of the European paleomargin in the external Western Alps is still unknown, although important for reconstructing the geodynamic evolution of this orogen. Here we combine zircon fission track and apatite fission track and U‐Pb double dating analyses of the Pelvoux massif in the Western Alps ...
L. Boschetti, F. Mouthereau, S. Schwartz, Y. Rolland, M. Bernet, M. Balvay, N. Cogné, A. Lahfid   +7 more
wiley   +1 more source

Deciphering orogenic evolution [PDF]

, 2012
International audienceDeciphering orogenic evolution requires the integration of a growing number of geological and geophysical techniques on various spatial and temporal scales.
Jolivet, Laurent, Lardeaux, Jean-Marc, Rolland, Yan   +2 more
core   +4 more sources

Timing of Contractional Stress Propagation, From the Pyrenean Orogen to the Intraplate Domain, Evidenced by U‐Pb Dating of Syn‐Kinematic Calcite

Tectonics, Volume 44, Issue 2, February 2025.
Abstract The Mediterranean region provides a natural laboratory for studying complex deformation resulting from body forces and interactions between the convergence of the Africa and Eurasia plates since the Cretaceous. These interactions led to the formation of a mosaic of basins and orogenic domains, whose intrinsically complex evolution over time is
Agathe Jullien‐Sicre, Yves Missenard, Thomas Blaise, Romain Augier, Oriane Parizot, Frédéric Haurine   +5 more
wiley   +1 more source

Serpentinite–Sediment Associations: Provenance Controlled by Competing Extensional–Contractional Tectonic Processes During the Evolution of the Northern Apennines (Eastern Elba Island, Tuscany)

Basin Research, Volume 37, Issue 1, January–February 2025.
ABSTRACT Orogenic wedges juxtapose tectonic units that originated far from each other, and tracing these back to their origin is often difficult. We have studied two contrasting serpentinite–sediment associations of the Alpine‐Apennine orogenic wedge of eastern Elba Island with the help of a detrital zircon study of the sediments and a geochemical ...
Joachim Jacobs, Sergio Rocchi, Wolfgang Bach, Matteo Masotta, Leif‐Erik Rydland Pedersen   +4 more
wiley   +1 more source

Pressure and Temperature Estimation in Greenschist‐Facies Metapelites: An Example From the Variscan Belt in Sardinia

Journal of Metamorphic Geology, Volume 43, Issue 1, Page 21-46, January 2025.
ABSTRACT Phase equilibrium modelling is a powerful method for obtaining pressure–temperature (P–T) estimates in metapelites; however, the advantages, disadvantages, and limitations of applying this technique to greenschist‐facies pelites have received little attention.
A. Petroccia, J. B. Forshaw, P. Lanari, S. Iaccarino, C. Montomoli, R. Carosi   +5 more
wiley   +1 more source

Genesis and emplacement of felsic Variscan plutons within a deep crustal lineation, the Penacova-Regua-Verin fault: An integrated geophysics and geochemical study (NW Iberian Peninsula) [PDF]

, 2009
Multidisciplinary studies integrating, U-Pb geochronology, whole-rock geochemical data, isotope geochemistry, anisotropy of magnetic susceptibility (AMS) studies and gravimetry were carried out on the Vila Pouca de Aguiar and the Aguas Frias-Chaves ...
Martins, HCB, Noronha, F, Sant'Ovaia, H
core   +1 more source

Gravity field and geothermal structure of the Corsica‐Sardinia Block

Terra Nova, Volume 36, Issue 6, Page 506-515, December 2024.
Abstract This paper presents a finite‐differences 3D numerical model that simulates the gravity and thermal structure of the Corsica‐Sardinia Block (CSB), an apparently stable lithospheric domain characterized by cryptic tectonic activity. In the experiments, we change the density and heat production rate of the model crust within a range of ...
F. Cocco, L. Casini, A. Funedda
wiley   +1 more source